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<TITLE>Lidar Viewer</TITLE>
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<H2>Using "3D Lidar Viewer"</H2>

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This viewer is used to display lidar point data.

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<h3>Usage:</h3>
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<li>Open one or more lidar files using the "File" pulldown menu.
<li>Manipulate the lidar data in three dimensions using the mouse:
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<li>Drag while holding down the left mouse button to rotate the data.
<li>Drag while holding down the right mouse button to translate the data.
<li>Use the mouse scroll wheel to zoom the data in and out.
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<li>The data can be viewed as points, a wire mesh, or a surface.
<li>The data colors can be set to correspond to elevation, intensity, vegetation height (if the data has been <a href="filter.html">filtered</a>), return number, scan angle, classification, or an image.
<li>The colors of the data, background, and optional axes are all customizable.
<li>The viewer also includes the capability to save a screen capture.
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Back to LidarTools <a href="index.html">home page</a>.

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<h3>Notes:</h3>
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<li>This viewer requires data that are in the LAS format.
<li>This viewer is based on <a href="http://www.dfanning.com/documents/programs.html#FSC_SURFACE">FSC_SURFACE</a> by <a href="http://www.dfanning.com/">David Fanning</a>.
<li>Because most data sets contain far too many points for the viewer to adequately display, a random subset of points are utilized.  The number of subset points can be adjusted by the user under "Properties".
<li>If the colors are set corresponding to an image ("Style->Surface Color Type->From Image"), the source image must be in the same projection as the lidar data and must completely cover the the geographical extent of the lidar data.
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<P><A HREF="mailto:boisecal@isu.edu">Comments?</A></P>

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<center>&bull; Idaho State University &bull; Boise Center Aerospace Laboratory &bull; 322 E. Front Street #240 &bull; Boise, Idaho &bull;  83702 &bull;</center>

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